Type-writer.



B. H, mznmn. TYPE WRITER.

APPLICAUDN FILED OCT. 3%1911.

Patented Apr. 30, 1918.

IN VEN TOR.

WITNESS.-

BRUCE H. REDDITT, OF BALTIMORE, MARYLAND.

TYPE-WRITER.

Specification 0! Letters Patent.

Patented Apr. 30, Ii-lltt.

Application filed October 80, 1817.. Serial No. 199,304.

To all whom it ma 1 concern:

Be it known that I, Barron H. Renew, a citizen of the United States, residing at Baltimore, in the cityof Baltimore and State of Maryland, have invented a new and useful Attachment for an Improvement in Ty Writers, of which the following is a specification.

My invention relates to typewriter paper indicators and page-end.- indicators and stops, wherein a steel cylinder built or placed on the shaft of the platen, having cut in its convex surface a spiral groove, operates'a collar or engaging projection from a sliding or rolling indicator or stop, so as to move the indicator stop along a. track and scale as the platen is turned and the paper advanced, this indicator-stop serving two purposes, namely: first, to show constantly on the two scales the distance or number of line spaces through which the paper has been moved, as well as the distance or number of line spaces yet remaining to be written upon; and, second, to automatically lock the platen against being turned farther when it has already been turned through a certain distance, or through a given number of line spaces, which distance or number of line spaces is arbitrarily fixed in advance by the operator and the stop set accordingly.

I attain these objects by the mechanism illustrated in the accompanying drawing, which is an oblique view of the front, ri hthand side or corner of the machine, in w ich drawing- A is a steel cylinder, made as an integral part of, or firmly attached to the shaft of theplaten, and has cut in its lateral surface a spiral groove, N, rectangular in cross-seetion. B is an engaging projection, or collar, attached to the stop C by the hinge R, and having on the lower side at this hinge a projection P, which engages a seat in the spring F, this spring serving to hold the projection B in its place f engagement 1n the groove on cylinder A. The spring is attached at its elastic end to the bottom of the stop 0. The stop C slides or rolls along the track or plate D, and may either slide or operate on antifriction rollers as shown in the drawing, so that it is free to move from left to right, or vice versa, as the collar B moves along the cylinder A. G is an upward extension of the rear wall of the box or frame J-K, and has in its front lateral surface a rectangular depression L, in which fits the sliding scale H,

' set-screw S.

the distance in line spaces through which the platen and therefore the paper, has been moved or rotated. and through which tiltare yet to be rotated before the stop comes into action. respectively.

Before feeding or rolling a sheet of par into the machine, the projection, or coil l3 is raised by the knob on the upper Sill thereof and moved to the right not strikes and stops at the frame plate ii. the collar B being then lowered againstthccyiin der A.- If the collar does not fit into the groove, the platen is turned hat-iv ward until this takes place. a! which point the platen stops. The stop E is then h menu's of thc setsqrcw S, nnidc stat-L ner? at a point on the operator wishes to stop the writing. or alwhich is the desired bottom marginal point on the paper. this reading on the scale d.- pcnding upon the size of the paper used and the amount of mar rin desired at the bottom of the sheet. The scale (5 may have notcd at the proper points the points for standard papers uccordlng to their lengths, such as "legal". letter. note". etc. which standard sizes of paper may be immediately deter-- mined on sight, and therefore it would not be necessary to know even papers in-lines or inches, the stop E.

The paper is then fed or rolled into the machine in the usual way, and the writing done exactly as if the mechanismherein do scribed were not in place. As the paper is rolled in. the cylinder A turns so that be spiral groove N moves.

etc, before setting \Vhcn the paper has been turned through thedistance for which the stop E has been set, the moving sto C strikes the stationary stop E, thus 'ng the platen and preventing its being turned further.

- If it be desired to ('olllimlo furthcr oh the same sheet, it is necessary only to lift the collar B to an upright position, thus cutirely disengagin' wise, when there is no need at all for thrmdicator'stop, as .in filling in blanks, and

immecl iatoly the lengths of the on the principle of the slmple screw, the collar B along its track.-

g the mechanism. Lilrcscale of (i at which the so ill.)

such Work, it may be disengaged in the same way, and the machine used as if it were .not there.

I claim:

1. In a paper stop, in combination, an actuating member consisting of a worm-threaded cylinder driven by the platen shaft, a moving1 pointer. a follower on the pointer controlle y said actuating member to move the pointer proportionately to the platen roll, a fixed stop to be engaged by the pointer at the end of its traverse to c eck the platen at a predetermined point on the page, and a scale to be traversed by the pointer, the same being graduated in correspondence with the line spacing of tl machine, substantially as set forth.

2. In a paper indicator and page-end stop, in unnbination. an actuating member consisting of a worm-threaded cylinder driven by the platen shaft. a moving pointer, a follower on the pointer controlled by said actuating member to move the pointer proportionately to the platen roll, a lixed stop to be engaged by the pointer at the end of its traverse to check the platen at a predetermined point on the page, a scale to be traversed by the pointer. the same being permanently attached to the fixed stop, and graduated in inverse (-orrcspondcma: with the normal line spacing of the machine and in the direction of the motion of the pointer during the operation of the machine, substantially as set forth.

3. In a paper indicator and page-end stop, in combination, an actuating member consisting of a worm-threaded cylinder driven by the platen shaft, a moving pointer, a follower on the pointer controlled 1y said actuating member to move the indicator and page-end by the platen shaft, a moving pointer proportionately to the platen roll, a fixed stop to he engaged b the pointer at the end of its traverse to check the platen at a predetermined point on the pa e., and a plurality of scales to be traver' by the pointer, one being stationary and graduated in correspondence with the line spacing of the machine, and the -other being manually adjustable together with the fixed stop and graduated in inverse correspondence with the normal line spacing of the machine and the direction of motion of the pointer during the operation of the machine, substantially as set forth.

4. In a paper indicator and page-end stop, in combination, an actuating member consisting of a worm-threaded cylinder driven pointer. a follower on the pointer controlled by said actuating member to move the pointer proportionatcly to the platen roll. a springhinge whereby the follower is attached to the moving pointer, thus to enable the opcrntor to tliscngage the indicating and stopping mechanism at will. a fixed stop to be engaged by the pointer at the end of its traverse to check the platen at a prede termin'ed point on the page, and a plurality of scales to be traversed by the pointer. one being stationary and graduated in correspondence with the line spacing of-thc machine, and the other being manually adjustable together with the fixed stop, and graduated in inverse correspondence with the normal line spacing of the machine and direction of motion of the pointer during the operation of the machine, substantially as set forth in the drawing and specification forming a part of this application.

BRUCE H. BEDDIT'I. 

